Generating baffle



Dec. 24, law. D. E. WEGNEYR 2,226,455

1 GENERATING BAFFLE Filed Aug. 3, 1939 2 Sheets-Sheet 1 D. WEGNER 2,226,455

GENERATING BAFFLE Filed Aug. 3, 1939 2 Sheets-Sheet 2' Patented Dec. 24, 1940 uNlTEo STATES PATENT OFFICE dclaiml.

This invention relates to an improved heat generating battle for oil burning heaters.

More particularly, it is an aim of this invention to provide a heat generating baille for use in oil burner pots of the type Provided with a plurality of rings of perforations in its side wall and a fire ring mounted within the burner and dis posed between the top and bottom thereof, for generating heat in the bottom of the pot to more 10 efllciently vaporize the oil contained therein.

Still a further aim of the invention is to provide a heat generating baflie of the type descriped adapted to efilciently function to confine the heat of a low fire by increasing the heat in the bottom chimney draft.

Still another aim of the invention is to provide a heat generating battle which will be disposed below a high fire, in a burner of the class described, but which will be sufficiently heated thereby to maintain suillcient heat in the bottom of the pot to completely vaporize the oil contained therein.

Other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawings, which illustrate a preferred embodiment thereof, and wherein: I

Figure 1 is a vertical central sectional view of a conventional form of oil burner showing the invention, in elevation, mounted therein,

Figure 2 is an'enlarged top plan view of the invention,

Figures 3 and 4 are transverse vertical sectional views taken substantially'along the lines 3-3 and 4-4, respectively, of Figure 2,

Figure 5 is a horizontal sectional view taken substantially along the line 5-5 of Figure 3,

Figure 6 is a fragmentary side elevational view of a portion of the device, and

Figure '7 is a fragmentary central sectional view of a slightly modified form-of the invention.

Referring more particularly to the drawings, wherein like reference characters designate like or corresponding parts throughout the diil'erent views, Ill designates generally a conventional type of oil burner having a solid bottom portion forming a pot I l adapted to contain oil supplied thereto by means of the conduit I2. Burner it also includes a cylindrical side wall [3 which rises from the top of the pot I l and which is provided with a plurality of rings of spaced perforations H. Burner It also includes a lower fire ring l5 which extends inwardly from the cylin- 55 drical wall It intermediate 01' its top and bottom of the pot through reduction of the effect of the (Cl. 158-9l)- and intermediate of the rows of perforations H. The ring I! is provided with a central opening I. The burner I is enclosed by a cylindrical walled casing ll. whichis concentricallydisposed relatively thereto and which is provided with an opening I! in its bottom portion arranged coaxially with the burner l0 and spaced beneath the bottom of the pot H; Wall I8 is provided with an annular flange l9 at its top, provided with a downturned annular portion 20 which 10 is secured to casing ll by the fastenings 2| to close the passage between burner l0 and casing I! so that air entering opening IS ,in order to reach the top portion of the casing I1, above the burner It, must pass through the perforations M. The parts heretofore described are all of conventional construction and have been illustrated and described merely to explain the construction and function of the invention which will hereinafter be described.

The invention, designated generally 22, comprises a heat generating baille formed entirely of metal which is preferably relatively thin to more readily transmit heat. The generating baiile 22 includes the disk shaped members or plates 23, 25 which are preferably circular and provided with the radial outwardly diverging openings 24 forming the hub portions 25, rims 26 and connectingspokes 21. The disks 23 are connected by means of the fastenings 28 which extend through the d rims-2B and are held in spaced apart relationship by the sleeves 29 carried by the fastenings 28. The disks are arranged in their connected position so that their hub portions 25, openings 24, rims 2i and spokes 21 are in alinement, as best seen in Figure 2. The generating baiile 22 also includes a member, designated generally 30, which is disposed between the disks 23 and which includes a hub portion 3i and a plurality of blades 32 which extend radially therefrom. Blades 32 are formed integral with the hub 3| and are twisted, at 33, relatively thereto so that the plane of the blades 32 is substantially at right angles to the plane of the hub 3|. As best seen in Figures 3 and 4, the blades 32 diverge toward their free ends and are connected, adjacent their free ends, by a ring 34 which extends through each of the blades 32. As best seen in Figure 6, the inner sides of the rims 28 are provided with notches 35 in which the opposite edges of the outer ends of the blades 32 are seated to rigidly mount the member 30 between the disks 23. The rim 23 of one of the disks 23 is provided with the inwardly projecting members 36 having the outwardly projecting free ends 31 forming lugs for engaging the inner pcrtionof the fire ring l5 for mountingthe generating baiiie 22 in the opening I6, thereof, as illustrated in Figure 1.

In Figure 7 a slightly modified form of the baflle 22 is illustrated, wherein the hub portion of the upper disk 23 is provided with a central opening 38.

In the operation of the burner ii), .the flame initially is in the bottom of the pot l I and as the heat of the burner increases the flame moves upwardly step by step to the topmost row of perforations M. This movement of the flame from a low fire to a high fire will occur before the pot I l is sufficiently heated due to the chimney draft caused by the air entering the opening i8 and into the burner ill through the perforations [4 so that when the flame reaches the uppermost row of apertures 14, or the high fire stage, the pot is not sufiiciently heated to properly vaporize the oil to obtain the maximum heat from'the oil being used thereby rapidly causing the formation of carbon. The generating baifle 22 in theinitial stage of the flame, or in the low fire stage, functions to hold the heat in the pot ll to'thereby blue burning low or medium fire of substantially the same efficient performance of a high flame fire. After the flame has risen above the generating bafiie 22 this baflie will still continue to be heated by the flame and the heat therefrom will radiate from the blades 32 to maintain a high temperature'in the pot ll so that the oil contained therein will continue to be vaporized not only to produce a better high fire flame but to minimize the accumulation of carbon and the resulting waste.

Various modifications and changes are contemplated and maybe resorted to, as the drawings and description are only intended to illustrate a preferred embodiment of the invention, the scope of which is hereinafter defined by the appended claims.

I claim as my invention:

1. A device of the class described comprising a pair of disks having radially disposed outwardly diverging openings, means for mounting said disks in spaced apart relationship relatively to each other with said openings in alinement, and a plurality of blades disposed between said disks, Said blades biseoting the alined openings.

2. A device as in claim 1, comprising a plurality of outwardly projecting supporting lugs secured to said device.

3. A heat generating baflle for liquid fuel burners, comprising a pair of corresponding circular members, each of said circularmembers including a hub portion and rim connected by a plurality of spokes forming spaced outwardly diverging openings therebetween, means for securing said members in spaced apart relationship with said openings in alinement, a plurality of radially disposed blades mounted between said circular members and disposed between said diverging openings, and supporting lugs secured to one of said circular members and having free ends projecting outwardly from between said circular members. a

4. A device as in claim 3, the hub portion of the upper circular member being provided with a central opening.

5. In a heat generating baflie, a pair of corresponding plates provided with a plurality of radially disposed-outwardly diverging openings, means for connecting said plates in spaced apart relationship with said openings substantially in alinement, a hub, and a plurality of blades'radiating therefrom, said blades being formed integral with said hub and having, their planes disposed substantially at right angles to the plane of said hub, said hub and blades being fixedly secured between said plates with each of said blades disposed between corresponding openings of said plates.

6. A device as in claim 5, said blades diverging outwardly from said hub, and a ring extending through each of the blades adjacent its free end.

DANIEL E. WEGNER. 

